Loom attachment



March 5, 1935. D. c. BUSH ET AL LOOM ATTACHMENT 2 Sheets-Shed 1 Filed. Dec. 29, 1952 lNVENTRS. 1] avi d l:- El

ATTORNEYS.

\N-llli am A. M :1 are March 5, 1935. c BUSH ET AL 1,993,146

BOOM ATTACHMENT Filed 29, i952 2 Sheets-Sheet 2 35 I K 11 39 3a 32 3'% 38 I F W I 5 53 10 FIG. 9 37 l j I 45 FIG 1o \w FIG.12. WI/1M! q L v INVENTORS.

I 47 David llElus h.

1/7 Wi1'L-iamA.Nmure ATTORNEYS.

Patented Mar. 5, 1935 UNITED STATES LOOM ATTACHMENT David 0. Bush and William A. Moore, Greenville, S. 0.

Application December 29, 1932, Serial No. 649,426

1 Claim.-

The present invention relates primarily to looms of the type provided with filling replenishing mechanism controlled by feeler mechanism foreffecting replenishment of filling when the filling in the shuttle becomes substantially exhausted.

In such types of filling replenishing looms, a feeler is arranged to enter the shuttle on a detecting beat of the lay and engage the filling in 10 a manner whereby upon substantial exhaustion of filling, the replenishing mechanism is automatically set into action to supply the shuttle with filling.

The primary object of the present invention 15. is to provide an improved feeler mechanism for filling replenishing looms in which the feeler is of such construction and so contacts the filling as to prevent waste of the filling on the bobbin and yet insuring a change of filling prior to depletion of the filling to an extent suchas would cause a mistake in the cloth.

A further and important object of the invention is to provide feeler mechanism of this character embodying comparatively few and sturdy parts resulting in less wear and longer eflicient operation of the device. v v

A further object resides in the improved arrangement for insuring operation of the replenishing control means'upon detection of filling depletion by the feeler.

A further'object is to provide apparatus of this character wherein the parts are readily adjustable for attachment of the apparatus to looms of various types and sizes.

Other objects and advantages of the invention will be apparent during the course of the following detailed description, taken in connection with the accompanying drawings forming. a part of this specification and in which drawings:- 40 Figure 1 is a fragmentary perspective view of the feeler or detector end of a loom and showing the invention associated therewith.

Figure 2 is an enlarged fragmentary detail view showing the feeler contacting the filling on a detecting beat with a working supply of fillin in the bobbin. I

Figure -3 is a fragmentary detail view showing the feeler shifted on a detecting beat to actuate the replenishing control means upon deple- 50 tion of the filling.

Figure 4 is a longitudinal section through the feeler -mechanism. i

Figures 5, 6, and '7 are detail sectional views ing a support for one end of a transverse or rock control means and showing the actuator arm held in its raised normal inactive position out of the path of movement of the bunting member.

Figure 9 isa detail view of the replenishing control means showing the actuator arm having 5 been released by the feeler mechanism and lowered by gravity into the path of movement of the bunting member'for effecting operation of the replenishing mechanism.

Figures and 11 are detail sectional views on the respective lines in Figure 8.

Figure 12 is an enlarged perspective view of the retractable positioning pin or member for the actuator arm.

Referring to the drawings in detail, and where- 10 in similar reference characters designate corresponding parts throughout the several views, the letter A designates a loom frame of any usual construction provided with the improved feeler mechanism B and the replenishing control means C actuated by the means B for eifecting operation of the filling replenishing mechanism. The letter D may designate a shuttle adapted for movement in a lay in the usual manner and carrying the bobbin E upon which the filling F is wound.

The loom frame A embodies the usual'breast beam 5 provided withthe usual shipper stand 6. Provided on the breast beam 5 is a bearing 7 formshaft 8 which is operatively connected to the replenishing mechanism toinitiate filling replenishment when the rock shaft is rocked by the replenishing control means C. This rocking of the shaft 8 brings about replenishment of the filling such as is usual in this type of loom and the action and function of the shaft 8 corresponds with that of the shaft-d' shown in United States Patent #529,940, granted November 27, 1894.

Referring now to the feelermechanism B, the same is adapted for mounting at the detecting end of the loom as upon the shipper stand 6 and comprises a feeler stand 10 formed with a guide portion embodying a base section 11 and a cap or cover section 12 secured to the base section by suitable screws or the like 13. Projecting laterally from one side of the'base section 11 is an attaching flange 14 which is longitudinally slotted as at 15 for receiving mounting bolts 16 permitting adjustment of the feeler stand 10 in a direction transversely of the breast beam 5. The mounting bolts 16 may be in the form of stud bolts and are secured to the horizontal flange of an angle bracket 17, the downturned flange of which is slotted as at'18 to receive one or more attaching bolts 19 serving to adjustably secure the feeler stand to the shipper stand 6 for vertical adjustment. The feeler stand sections 11 and 12 are longitudinally grooved at their confronting sides to provide a guide for a reciprocally movable feeler carrier member 20 having an enlarged slide block 21 formed substantially midway of its ends and movable in the guide. The rear end portion 22 of the carrier member 20, beyond the block 21, is-substantially rectangular shape in cross section and slidably projects through the rear end wall of the feeler stand guide portion. The opposite or forward end of the carrier member is formed with a preferably cylindrical stem portion 23 having slid-' ing movement through the front end wall of the feeler stand. An expansion coil spring 24 encircles the pin 23 and acts between the slide block 21 and the front end wall of the feeler stand guide portion to normally urge the carrier member 20 rearwardly into feeling position. .The formation of the portions 21 and 22 of the carrier member 20 are such as to prevent rotation of the member in the feeler stand, and the slide block.21 serves to limit rearward movement of the carrier member by the coil spring 24. Pivotally mounted intermediate its ends upon the rear projecting end of the carrier member 20 as upon the pivot pin 26. is a trip lever 25 which is provided at its rear end with a threaded socket 2'7 for threaded reception of the threaded stem or shank portion of a substantially L-shaped feeler 28. A jamb nut 29 threaded on the stem portion of the feeler 28 serves to retain-the feeler in adjusted position on the trip lever. The stem portion of the feeler 28 is formedwith an offset as clearly shown in Figures 2 and 3 for disposing the toothed end portion or foot 30 of the feeler in a position offset to one side of the longitudinal axis of the trip lever 25. This toothed end portion or foot 30 has the teeth formed along the rear side thereof and extends in substantially right angular relation to the longitudinal axis of the trip lever. Referring now to the replenishing control means C, a crank arm 31 secured to and extending upwardly from the rock shaft 8, has pivotally connected to its upper end an actuator arm 32 which extends rearwardly above the breast beam 5. The rear end of this actuator arm 32 is tapered as shown more clearly in Figures 8 and 9 and is adapted to be engaged by an operating or bunting member 33 which may be carried by the weft hammer or operated in any preferred way to have reciprocatory movement toward and from the rear end of the actuator arm in a direction longitudinally of the arm. The bunter member 33 is provided in its forward end and at its upper end portion with a notch 34 adapted to receive the rear tapered end of the arm 32 when released by the feeler mechanism B on a detecting beat of the lay. This notch 34 forms an overhanging lip 35 beneath which the tip of the actuator arm engages and is held thereby to insure imparting of movement to the arm for rocking the shaft 8.

Mounted upon the upper side of the breast beam 5 below the rear end of the actuator arm 32 and at one side of the bunting member 33 as by the bolt 36, is a guide block 37 having an elongated slot 38 through which the bolt 36 passes whereby the block may be adjusted in a direction longitudinally of the arm 32 and transversely of the breast beam. Formed in the upper side of the block 3'7 is an elongated recess or pocket 39 which extends in a direction parallel to the actuator arm and this recessis adapted to receive the lower end of a rest arm 40 forming a support for the rear free end of the actuator arm 32. The upper end of the rest arm 40 is formed with a right angularly offset end portion 41 which is threaded into a threaded opening 42 provided transversely in the free end of the actuator arm. A jamb nut 43 serves to lock the arm 40 in adjusted position. The rest arm is formed at its lower end with a substantially C-shaped portion for engaging in the recess 39 and by observing Figures 8 and 9 it will be seen that the rear end of the actuator arm may be raised or lowered to various degrees through turning of the arm portion 41 in the opening 42.

Reciprocally movable in the guide block 3'? is a positioning pin or member 44 for controlling the position of the actuator 32 with respect to the hunter member 33. The block 37 is provided with a guideway 45 which extends transversely of the recess 39 at the bottom thereof, and this guideway slidably receives the positioning member 44 so that the member extends across the bottom of the recess adjacent the rear end thereof. This pin 44 when extending across the recess 39 provides a support for the lower end of the rest arm 40 whereby the actuator arm'32 is held in a raised inoperative position as shown in Figure 8. When the arm 32 is held raised by the pin 44, the upper end of the hunter member 33 moves freely beneath the rear end of the arm. Extended vertically through the guide block 37 and traversing the guideway 45 is a cotter pin 46 adapted to pass through an elongated slot 47 formed in the pin 44 whereby the pin is held against displacement.

A motion transmitting means is provided between the feeler mechanism B andreplenishing control means C for actuating the pin 44 and releasing the arm 32 upon swinging movement of the feeler trip lever 25 at a detecting beat. This means embodies an adjustable transmitter rod 50 having a turnbuckle 51 for adjusting the length of the rod. One end of the rod 50 is provided with a right angular coupling pin portion 52 adapted to fit in an opening 53 formed through the. trip lever 25 .forwardly'of its pivot 26. .The coupling pin portion 52 may be held in the opening 53 by a cotter pin or the like. The opposite end of the rod 50 is provided with a right angular coupling pin portion 54 adapted to fit in an opening 55 formed through the outer end of the posi tioning pin 44. Adjustable along the rod 50 is a sleeve 56 forming a point of attachment for one end of a contractile coil spring 57 having its opposite end secured in the eye of the cotter pin 46. Thus it will be seen that the spring 5'? acts to normally urge the positioning pin 44 into the recess 39 holding the actuator arm raised, and the trip lever 25 to a position aligning longitudinally with the feeler carrierrmember 20. The pin 44 may also serve as a movement limiting means for the transmitter rod as shown in Figure 10 wherein the pin is shown abutting the inner end of the guideway 45.

When the pin 44 is withdrawn through swinging detecting movement of the feeler 28, the rest arm 40 is permitted to drop in the recess 39 as in Figure 9, thus lowering the free end of the actuator arm 32 into the path of movement of the hunter member 33. Movement of the bunter member thus imparts longitudinal movement to the arm 32 and through the crank arm 31' rocks the rock shaft 8. During forward movement of the actuator arm by the bunter, the lower end of the rest arm 40 slides forwardly in the elongated recess 39. 7 Y

During normal running operation of the loom, the bunter member 33 isreciprocated idly below the rear end portion of the actuator arm 32, the arm being held out of the path of movement of the bunter by the pin 44. So long as there is a Working supply of the filling F on the bobbin E, on a detecting beat, the feeler 28 engages the filling and pushes the carrier member 20 forwardly against the tension of the spring 24 as in Figure 2. As long as there is sufiicient filling on the bobbin, the teeth on the feeler foot or tip 30 prevent any slipping of the foot lengthwise of the bobbin so that the trip lever 25 is not swung about its pivot 26. When the filling is being Withdrawn from the bobbin during the weavingoperation, and the supply of filling approaches substantial exhaustion so as to expose a bare portion of the bobbin; as the lay moves forward the feeler foot engages the bare surface of the bobbin and slips along the smooth surface of the bobbin toward the tip thereof as shown in Figure 3. This slipping of the foot or tip 30 along the bobbin is made possible by the offsetting of the foot out of alignment with the path of movement of the feeler carrier member 20. This slipping of the foot 30 along the bared bobbin swings the forward end of the trip lever towards the left and exerts a pull upon the transmitter rod 50 whereby the pin 44 is withdrawn from beneath the rest arm 40 and allows the actuator arm 32 to be lowered at its rear end until the arm 40 rests in the bottom of the recess 39. The rear end of the actuator arm is thus lowered into the path of movement of the bunter 33 which is so timed with respect to the beat of the lay as to be moving forwardly at the time the pin 44 is withdrawn. As the bunter moves forwardly the rear end of the actuator arm 32 is' engaged in the notch 34 and the arm is carried forwardly and the crank arm 31 swung so as to rock the rock shaft 8. Rocking of this shaft 8 brings about the replenishment of the filling in a well known manner, such for example as shown in United States Patent #529,740. Thus, the feeler will initiate filler replenishment before complete exhaustion of filling. The entire mechanism, exclusive of the spring 24 permitting yielding of the carrier member 20, will be returned to a normal feeling position by the spring 57 acting upon the transmitter rod 50. The inner end of the pin 44 is beveled off as at 44 so that the rest arm 40 will be caused to rise up on the pin and raise the actuator arm 32 as the pin moves inwardly in the guideway 45.

' It will be noted that the adjustable features of the apparatus will permit attachment thereof to various types and sizes of looms, as well as adjustment of the various elements of the apparatus for the most eflicient operation thereof. When the actuator arm 32 is in the position as shown in Figure 9, the arm is held for positive movement beneath the projection or lip 35 and without likelihood of the tip of the arm slipping off the bunter member 33. The rest arm 40, through engagement in the recess 39, also assists in holding the free end of the actuator arm against lateral movement and in proper position to be engaged by the bunter member.

Changes in detail may be made to the form of invention herein shown and described, as well as adaptation of the invention to types of looms other than of the class mentioned, without departing from the spirit of the invention or the scope of the following claim.

We claim:

In a filling replenishing loom including feeler mechanism for detecting substantial exhaustion of filling, an actuator arm, and a bunter for coacting with the rear free end of the arm; a rest arm rotatably and laterally adjustable in the rear portion of the actuator arm and having an arcuate-shaped end portion, a guide block having a lateral guideway, said guide block being adjustably mounted below the rear portion of the actuator arm for adjustment longitudinally of the actuator arm and having an elongated pocket opening at its upper side for the arcuate-shaped end portion of the rest arm, a retractable rest pin traversing said guideway and engaging the arcuate end portion for supporting the rest arm above the bottom of the pocket whereby the actuator arm is held raised out of engagement by the bunter, transmitter means between the feeler mechanism and rest pin for retracting the pin upon a filling detecting beat of theflfeeler mechanism, and spring means normally retaining the rest pin in a position supporting the actuator arm.

DAVID C. BUSH. WILLIAM A. MOORE.

slidably receiving 

